187222233 has 8 divisors (see below), whose sum is σ = 272323296. Its totient is φ = 113468000.

The previous prime is 187222229. The next prime is 187222249. The reversal of 187222233 is 332222781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 187222233 - 2² = 187222229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 187222233.

It is not an unprimeable number, because it can be changed into a prime (187222213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2836668 + ... + 2836733.

It is an arithmetic number, because the mean of its divisors is an integer number (34040412).

Almost surely, 2^187222233 is an apocalyptic number.

It is an amenable number.

187222233 is a deficient number, since it is larger than the sum of its proper divisors (85101063).

187222233 is a wasteful number, since it uses less digits than its factorization.

187222233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5673415.

The product of its digits is 8064, while the sum is 30.

The square root of 187222233 is about 13682.9175616898. The cubic root of 187222233 is about 572.0743470692.

The spelling of 187222233 in words is "one hundred eighty-seven million, two hundred twenty-two thousand, two hundred thirty-three".